Set the time and date
- In the Timekeeping Mode, hold A for at least one second, until the seconds flash.
- Press C to step through the settings: seconds, summer time, Home Time UTC offset, hours, minutes, year, month, day, flash alert.
- On the seconds, press D to reset them to 00.
- On any other setting, use B and D to change it (hold for fast).
- Press A twice to finish.
Good to know
Resetting the seconds between 30 and 59 adds one minute.
In the Timekeeping Mode, each press of D switches between 12-hour and 24-hour format.
From Casio's guide, page 7